always talking about phrasing. talking about music. it is wide open. >> as the newest, youngest member of chicago, what is it that makes the decade not matter when it comes on the radio? >> it's become the back drop of millions of people's lives. when they come to the shows, they bring back those memories of where they were when they heard these songs before. i think that's why it is tra transcended and timeless. >> the music talent is amazing. transcends all ages. >> you can't find bands producing this kind of music today. this is it. >> reporter: the great jimi hendrix gave chicago advice they'd never forget. >> he said, pay it forward, share your gift. we did. >> we all lived in a little house under the hollywood freeway. each guy had a shelf in the medicine cabinet. each guy had a shelf in the